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Modeling musicological information as trigrams in a system for simultaneous chord and local key extraction

机译:在系统中将音乐学信息建模为三元组,同时提取和弦和本地音

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In this paper, we discuss the introduction of a trigram musicological model in a simultaneous chord and local key extraction system. By enlarging the context of the musicological model, we hoped to achieve a higher accuracy that could justify the associated higher complexity and computational load of the search for the optimal solution. Experiments on multiple data sets have demonstrated that the trigram model has indeed a larger predictive power (a lower perplexity). This raised predictive power resulted in an improvement in the key extraction capabilities, but no improvement in chord extraction when compared to a system with a bigram musicological model.
机译:在本文中,我们讨论了在同时和弦和局部音调提取系统中引入三音组合音乐模型的方法。通过扩大音乐模型的上下文,我们希望获得更高的准确性,从而可以证明相关联的更高的复杂性和最佳解决方案的搜索计算量。在多个数据集上进行的实验表明,trigram模型确实具有较大的预测能力(较低的困惑度)。与具有双曲音乐模型的系统相比,这种提高的预测能力导致了键提取功能的改进,但和弦提取却没有改进。

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